From James A. Miller and Tom Shales' 2003 Live from New York: An Uncensored History of Saturday Night Live, as Told By Its Stars, Writers and Guests.
Alan Zweibel: "John [Belushi] was on the cover of Newsweek by himself when Animal House came out, and there wasn't anyone from the rest of the cast there with him. I think if there was a demarcation point, as far as I was concerned, that may have been it. Things changed. All of a sudden there was a world that was dangling temptations. John's a star now by himself, John's getting a million dollars or whatever it was, by himself. Gilda [Radner] was given a one-woman show on Broadway. Billy [Murray] did Meatballs. John did Goin' South, and he and Danny [Akroyd] did the Blues Brothers movie.
"And I think those last few years that I was there, one of Lorne's [Michaels] greatest tasks was to keep everybody together. So it wasn't just, 'Let's put on a fun show,' it was, 'Let's keep this together.' And what happened was, there was a competition. There were studio executives starting to hang out in 8H during blocking asking, 'Who wrote that sketch?' They were looking for sitcom writers or movie writers."
Tags: Live from New York, Saturday Night Live, Tom Shales